mash: Move several chromeos system tray items to //ash/common

ash/system/chromeos/bluetooth/tray_bluetooth.h

Index: ash/system/chromeos/bluetooth/tray_bluetooth.h
diff --git a/ash/system/chromeos/bluetooth/tray_bluetooth.h b/ash/system/chromeos/bluetooth/tray_bluetooth.h
deleted file mode 100644
index a0a673a377f18f9b8be85dc91225b5e68167bd52..0000000000000000000000000000000000000000
--- a/ash/system/chromeos/bluetooth/tray_bluetooth.h
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef ASH_SYSTEM_CHROMEOS_BLUETOOTH_TRAY_BLUETOOTH_H_
-#define ASH_SYSTEM_CHROMEOS_BLUETOOTH_TRAY_BLUETOOTH_H_
-
-#include "ash/common/system/chromeos/bluetooth/bluetooth_observer.h"
-#include "ash/common/system/tray/system_tray_item.h"
-#include "base/macros.h"
-
-namespace ash {
-namespace tray {
-class BluetoothDefaultView;
-class BluetoothDetailedView;
-}
-
-class TrayBluetooth : public SystemTrayItem, public BluetoothObserver {
- public:
-  explicit TrayBluetooth(SystemTray* system_tray);
-  ~TrayBluetooth() override;
-
- private:
-  // Overridden from SystemTrayItem.
-  views::View* CreateTrayView(LoginStatus status) override;
-  views::View* CreateDefaultView(LoginStatus status) override;
-  views::View* CreateDetailedView(LoginStatus status) override;
-  void DestroyTrayView() override;
-  void DestroyDefaultView() override;
-  void DestroyDetailedView() override;
-  void UpdateAfterLoginStatusChange(LoginStatus status) override;
-
-  // Overridden from BluetoothObserver.
-  void OnBluetoothRefresh() override;
-  void OnBluetoothDiscoveringChanged() override;
-
-  tray::BluetoothDefaultView* default_;
-  tray::BluetoothDetailedView* detailed_;
-
-  DISALLOW_COPY_AND_ASSIGN(TrayBluetooth);
-};
-
-}  // namespace ash
-
-#endif  // ASH_SYSTEM_CHROMEOS_BLUETOOTH_TRAY_BLUETOOTH_H_